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19-500: The reserve has an area of 295 hectares (730 acres) and lies about 1.5 km west of the village of Ebbingen , 3.5 km north of the village of Fulde and five km northwest of the town of Walsrode. In the centre of the moor is the 2.5 metre deep lake Grundloser See , which is 435 metres long from north to south, and 160 metres wide in its northern part. It has an area of 4.7 hectares (12 acres) and lies at 72.5 metres (238 ft) above mean sea level. Roughly 400 metres to

38-458: A bog pond as a result of the build-up of peat moor and other processes. The Grundloses Moor nature reserve is dominated by cottongrass , cranberries , bilberries , peat moss and cross-leaved heath . It was formerly used for peat cutting, especially in the south, but has regenerated itself after measures to raise the water levels were introduced. It is possible to walk around the lake close to its shore setting out from hikers' car parks to

57-433: A glacier retreats from a previously deposited terminal moraine, only to push proglacial sediment or till into an existing terminal moraine. This process can make the existing terminal moraine far larger than its previous size. Dump moraines occur when rock, sediment, and debris, which accumulate at the top surface of the glacier, either slide, fall, or flow off of the snout of the glacier. The accumulation of till will form

76-416: A structure that appears to be a barrier for water, there are still ways for the water to flow through. Water makes its way through glacial till to form streams and channels . Another landscape feature formed by terminal moraines are kettle lakes . These are produced during glacial recession when boulders or blocks of ice are left in place as the glacier recedes from the newly deposited terminal moraine. As

95-461: A terminal moraine as the glacier retreats. Ablation moraines form when a large piece of ice, containing an accumulation of sediment and debris, breaks from the snout of the glacial. Once it is separated and begins to melt, the debris found throughout this glacial piece is deposited to form a new terminal moraine. The more debris that is found within the ice, the longer it will take for complete melting to occur. Climate plays an important role in

114-465: Is left as the marking point of the terminal extent of the ice. As a glacier moves along its path, the surrounding area is continuously eroding. Loose rock and pieces of bedrock are constantly being picked up and transported with the glacier. Fine sediment and particles are also incorporated into the glacial ice. The accumulation of these rocks and sediment together form what is called glacial till when deposited. Push moraines are formed when

133-785: The Forno Glacier in the south-eastern canton of Graubünden near St. Moritz and the Italian border. In New Zealand the Franz Josef Glacier on the West Coast has created the terminal moraine called the Waiho Loop . Accumulation zone On a glacier , the accumulation zone is the area above the firn line, where snowfall accumulates and exceeds the losses from ablation , ( melting , evaporation , and sublimation ). The annual equilibrium line separates

152-538: The Outer Lands is a name given to the terminal moraine archipelago of the northeastern region of the United States ( Cape Cod , Martha's Vineyard , Nantucket , Block Island and Long Island ). According to geologist George Frederick Wright some of the most prominent examples of terminal moraines on Long Island are "the most remarkable in the world". Other prominent examples of terminal moraines are

171-606: The Tinley Moraine and the Valparaiso Moraine , perhaps the best examples of terminal moraines in North America. These moraines are most clearly seen southwest of Chicago. In Europe , virtually all the terrain in the central Netherlands is made up of an extended terminal moraine. In Switzerland , alpine terminal moraines can be found, one striking example being the moraine at the end of the valley of

190-506: The meltwater . Here, old vegetation is buried by the sediment, but new vegetation can still survive relatively well as long as it can acquire meltwater from the now receding glacier. Terminal moraines are one of the most prominent types of moraines in the Arctic . One notable terminal moraine is Trollgarden in Norway , once thought to be magically constructed by trolls . In North America,

209-424: The terminal (edge) of a glacier , marking its maximum advance. At this point, debris that has accumulated by plucking and abrasion, has been pushed by the front edge of the ice, is driven no further and instead is deposited in an unsorted pile of sediment. Because the glacier acts very much like a conveyor belt , the longer it stays in one place, the greater the amount of material that will be deposited. The moraine

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228-595: The Northern hemisphere began its modern ice-age. Most of what is now Canada and northern portions of the United States were covered in ice sheets or mountain driven glaciers during the last stage of the Pleistocene Epoch . In the last 400,000 years there have been roughly four major glacial events. Evidence of these separate events is found not only in ice cores , but also in the glacial till that

247-472: The east (Ebbingen) and south (north of the Fulde). The lake is not suitable for bathing. 52°54′12.54″N 9°33′0.48″E  /  52.9034833°N 9.5501333°E  / 52.9034833; 9.5501333 This Lower Saxony location article is a stub . You can help Misplaced Pages by expanding it . End moraine A terminal moraine , also called an end moraine , is a type of moraine that forms at

266-499: The formation of terminal moraines. As temperatures increase, glaciers begin to retreat faster, causing more glacial till to be deposited in the form of terminal moraines. However, when temperatures decrease, zone of accumulation goes into overdrive. This starts a process where the accumulation of snow , in the zone of accumulation is greater than loss due to melting or ablation. During the Last Glacial Maximum (LGM),

285-473: The ice boulders melt, they begin to pool to form kettle lakes in the glacial outwash plain . The terminal moraine is the furthest point of disturbed sediment, which is formed into a long mound outlining the front edge of the glacier. This mound typically consists of a large quantity of rocks and boulders along with sediment, and can combine to reach a height of multiple meters. The process of uplifting and moving these large rocks and boulders negatively affects

304-413: The local vegetation by either crushing them or contributing to the process of the glacier plowing the topsoil , which removes the vegetation from the soil completely, including the root systems . In this area of disturbed land, it is difficult for new vegetation to grow. Immediately beyond the terminal moraine is the glacial outwash plain , covered in a layer of sediment, with braided streams formed from

323-621: The northeast lies the Kleiner See ("Little Lake") with a diameter of about 60 metres. The moor was formed in the northeastern half of a 4-kilometre-long depression enclosed by two parallel end moraines which were deposited during the Saalian glaciation . It is drained by a ditch that acts as the upper course of the Fulde . The Grundloser See was originally a residual ice age lake that had almost silted up. However, since then it has become

342-428: The opposite direction of the retreat, causing braided streams and channels to form. A terminal moraine creates a barrier helping to trap water in a newly-formed glacial lake . The positioning of the lake resulted from not only subsidence , but also the terminal moraine providing the foundation for the wall that holds the water in place. While the terminal moraine consists of a long mound of rock and sediment which forms

361-505: Was deposited. Rocks and sediment not native to one area could be found in a region completely foreign to that from which they were formed. This is the result of a prior terminal moraine being picked up and deposited by a newer glacial event. The terminal moraines resulting from the Last Glacial Maximum are the most informational features about glacial advance still present today. During glacial retreat, meltwater flows in

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